Answers
Answer:
B
Step-by-step explanation:
The figure has rotational symmetry is figure B.
What is Symmetry?Symmetry According to the definition of mathematics, "symmetry is a mirror image." Symmetry occurs when a picture appears identical to the original image after the shape has been twisted or flipped. It exists in the form of patterns. In everyday life, you may have heard the term "symmetry."
We know in rotational symmetry the plane figure is rotated by angle(radians) about a certain point on the plane to coincide with the original figure, This figure is called a rotational symmetry figure.
Here, the figure that satisfies the rotational symmetry is figure B.
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Related Questions
Find the length of the side and area of the square who perimeter is given below
(a) 44 cm
Answers
Answer:
Side length:11
Area: 121
Step-by-step explanation:
if its a square all sides should be equal so you can divide 44 by 4 which gives you 11 and then to find area you just multiply the two sides together which would be 11x11 and that equals 121
I'm pretty sure this is what it would be but it also seems over simplified and i might be missing something?
7 minus the product of 5 and a number n
Answers
Answer:
= 7 - 5n
Step-by-step explanation:
Product of 5 and n
= 5 × n
= 5n
Subtracted from 7
= 7 - 5n which is the answer.
I really do not know because it does not make sense
Kiran's aunt is 17 years older than kiran. how old will kiran's aunt be when kiran is x years old.
Answers
Answer:
Kirans aunt is 32 years old
Step-by-step explanation:
When Kiran was born her/his Aunt would be 17 as the problem says, so just add 15 to 17 to make 32; therefore Kiran's Aunt is 32 years old
Find the value of x.
Answers
Answer:
write 9x+80=7x+120
next transpose the x values to one side and the number to other side
i.e 9x-7x=120-80
= 2x= 140
x=140/2
and you will get the answer 70
so x=70
Step-by-step explanation:
Please mrk me as brainliest if you
The person above me is correct have a good day or night :))
10. Complete the statement by using the Inverse Property
of Addition
-19 +?=0
Answers
solve for the value of z
Answers
Answer:
z = 11
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityGeometry
Supplementary Angles: Angles that add up to 180°Step-by-step explanation:
Step 1: Identify
Diagram shows supplementary angles.
(9z + 7)° + 74° = 180°
Step 2: Solve for z
Add: 9z + 81 = 180[Subtraction Property of Equality] Subtract 81 on both sides: 9z = 99[Division Property of Equality] Divide 9 on both sides: z = 11Can somebody please help me with this
Answers
PART A: A landmark on the first map is a triangle with side lengths of 3 cm, 4 cm, and 5 cm. What are the side lengths of the triangle landmark on the second map? Show your work. It may help you to "draw" out the two maps and label the trails.
PART B: D. Draw one of the triangles from part C. Label the side lengths and vertices accordingly. You may use this drawing tool or draw your triangle on paper: https://apps.mathlearningcenter.org/pattern-shapes/
Answers
Complete Question:
Johnny printed two maps of a walking trail near his home. The length of the walking trail on the first map is 8 cm.
(a) Choose a length between 5 cm and 15 cm for the walking trail on the second map: ________cm.
(b) Determine the scale factor from the first map to the second map.
(c) A landmark on the first map is a triangle with side lengths of 3 cm, 4 cm, and 5 cm. What are the side lengths of the triangle landmark on the second map?
(d) Draw one of the triangles from part C. Label the side lengths and vertices accordingly. You may use this drawing tool or draw your triangle on paper:
Answer:
(a) Length = 4cm
(b) Scale factor = 0.5
(c) 3cm, 4cm and 5cm are represented by 1.5cm, 2cm and 2.5cm respectively, on the second scale
(d) See attachment for triangle
Step-by-step explanation:
(a) Choose a length between 5 cm and 15 cm
[tex]Length =4cm[/tex] --- This is solely up to you (you can make use of any length between 5 cm and 15 cm)
(b) The scale factor
The scale factor (k) is calculated as:
[tex]k = \frac{New\ Length}{Old\ Length}[/tex]
[tex]k = \frac{4cm}{8cm}\\[/tex]
[tex]k = 0.5[/tex]
(c) What are side lengths of 3 cm, 4 cm, and 5 cm on the second landmark
Using:
[tex]k = \frac{New\ Length}{Old\ Length}[/tex]
The old lengths, in this case are: 3cm, 4cm and 5cm
Make New length the subject
[tex]New\ Length = k * Old\ Length[/tex]
When [tex]Length = 3cm[/tex]
[tex]New\ Length = 0.5 * 3cm = 1.5cm[/tex]
When [tex]Length = 4cm[/tex]
[tex]New\ Length = 0.5 * 4cm = 2cm[/tex]
When [tex]Length = 5cm[/tex]
[tex]New\ Length = 0.5 * 5cm = 2.5cm[/tex]
So: 3cm, 4cm and 5cm are represented by 1.5cm, 2cm and 2.5cm respectively, on the second scale
(d) See attachment for triangle
b How much is 10% of 10 liters of milk?
C.How long is 10% of a 24-hour day?
d.How can you find 10% of any number?
Answers
Answer:
b. 1 liters of milk
c. 2.4 hours
d. (any number) /10% times 100
Step-by-step explanation:
because of the gravity of the earth
bobo Ampt
Help me now please please
Answers
Answer:
3. should be the answer good luck
Which set of words describes the end behavior of the function f(x)=−5x(x−4)(x+5)(2x+3)?
Answers
Answer:
Falls to the left and rises to the right
Step-by-step explanation:
because
degree =5
leading coefficient =4 and positive it will rise to the right
those are tips to use to determine it :
1. Even and Positive: Rises to the left and rises to the right.
2. Even and Negative: Falls to the left and falls to the right.
3. Odd and Positive: Falls to the left and rises to the right.
4. Odd and Negative: Rises to the left and falls to the right
here is a rule for working out the area of a rhombus
Answers
Answer:
never did this before but I think it's 24
enlarge this shape by scale factor 3 on the grid below
Answers
Solve for y when 48/y = 12. Y=
Answers
The solution for y in the equation 48/y = 12 is y = 4 .
To solve for y in the equation 48/y = 12, we can multiply both sides of the equation by y to eliminate the denominator:
48/y * y = 12 * y
On the left side, the y in the denominator cancels out:
48 = 12 * y
Next, divide both sides of the equation by 12 to isolate y :
48/12 = y
Simplifying, we get:
4 = y
Therefore, the solution for y in the equation 48/y = 12 is y = 4 .
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John has $55. He buy 6 books. Each book cost the same amount . He now has 10
Answers
Answer:Answer: $7.50
Step-by-step explanation:
$55-$10=$45 45/6=7.5
Step-by-step explanation:
Find such a coefficient a for the linear equation ax –y=4, so that the graph of the equation would pass through the point M (3, 5). Please graph afterwards!! First correct answer gets brainlyyy
Answers
Answer:
a=3; (3,5) and (4,0) for the graph
Step-by-step explanation:
ax-y=4
x=3, y=5 so...
a(3)-5=4
3a-5=4
+5 +5
3a=9
/3 . /3
a=3
For the graph, use (3,5) and substitute x and y for anything:
ax-y=4
if x=0...
a(0)-y=4
-y=4
y=4
a=3; (3,5) and (4,0) for the graph!
Question 4
Which pattern of points in a scatterplot describes r=-1.0?
A) All points lie on a horizontal line
B) All points lie on a line that increases from left to right?
C) All points lie on a line that decreases from left to right?
D) A cloud of random points.
Answers
HELP 50 POINTS!!!!
a. Is 8.3 a solution of 73.8 < 9x? =
b. is 6.5 a solution of 12x < 78?
c.Is 7 a solution of 9x > 45?
d. is 17 a solution of 19 - x >2?
=
e. is 6 a solution of x + 12 > 18?
Answers
Step-by-step explanation:
step 1. the answer is no - to all of them
step 2. 12x < 78
step 3. x < 6 5
step 4. the answer is x is less than 6.5 but not equal to
step 5. if you had 12x <= 78 then 6.5 would be a solution because it would also be equal to.
Suspecting that television repair shops tend to charge women more than they do men, Emily disconnected the speaker wire on her portable television and took it to a sample of 12 shops. She was given repair estimates that averaged $85, with a standard deviation of $28. Her friend John, taking the same set to another sample of 9 shops, was provided with an average estimate of $65, with a standard deviation of $21. Assuming normal populations with equal standard deviations, What is the the pooled estimate of the common variance with the 0.05 level
Answers
Answer:
The pooled estimate of the common variance is approximately 639.59
Step-by-step explanation:
The given parameters are;
The number of shops Emily visited, n₁ = 12 shops
The average repair estimate Emily was given, [tex]\overline x_1[/tex] = $85
The standard deviation of the estimate Emily was given, s₁ = $28
The number of shops John visited, n₂ = 9 shops
The average repair estimate John was given, [tex]\overline x_2[/tex] = $65
The standard deviation of the estimate John was given, s₂ = $21
The pooled estimate of the common variance, [tex]s_p^2[/tex], is given as follows;
[tex]s_p^2 = \dfrac{(n_1 - 1)\cdot s_1^2+(n_2 - 1)\cdot s_2^2}{n_1 + n_2-2}[/tex]
[tex]\therefore s_p^2 = \dfrac{(12 - 1)\cdot 28^2+(9 - 1)\cdot 21^2}{12 + 9-2} = 639.578947368[/tex]
∴ The pooled estimate of the common variance, [tex]s_p^2[/tex], ≈ 639.59
joyce is thinking of a 3 digit number. her number has the digits 8, 4, and 6. to the nearest hundred, it rounds to 600. what is the number?
Answers
Answer:
648
Step-by-step explanation:
It will round down (since 4 and down round down) to 600. Therefore, the answer is 648.
Hope that helps!
-Sabrina
Answer:
648
Step-by-step explanation:
If triangles DEF and NPQ are similar, what is the length of side q?
• Enter the answer as a fraction.
Answers
Answer:
q= 45/14 (or) 3 3/14
Step-by-step explanation:
7/9=5/2/q
cross multiply
7q=45/2
q=45/2÷7
q= 45/14 (or) 3 3/14
which of these fractions represent 35%
35/10 1/35 100/35 or 35/100
Answers
Answer: 35/100
Step-by-step explanation: percents are always out of 100, so 100 will always be in the denominator.
Answer:
35/100
Step-by-step explanation:
35% is from 100%, so same for the fraction form 35/100
Please do your work on paper Show all of your work. You may use excel to do calculations, but you must show all of the steps you took to get to the answers. Make sure it is all in one document and upload that document. Below are a set of heights (in inches) and GPA scores for a sample of 6 students. Height, GPA 60, 4.0 55, 3.2 62, 3.7 58, 3.9 49, 2.4 61, 2.8 6 points a) Find the correlation coefficient (r) for these two variables by hand 4 points b) Find the mean and standard deviation for each variable. 5 points c) Find the equation of the regression line to predict GPA from height by hand 3 points d) Based on this data, what is the GPA prediction for a student who is 56 inches tall
Answers
Answer:
R = 0.6407
y = 0.08511X - 1.56028 ; 3.2
Step-by-step explanation:
Given the data:
HEIGHT, inches (X) :
60
55
62
58
49
61
GPA :
4.0
3.2
3.7
3.9
2.4
2.8
Using a linear regression calculator :
The regression equation obtained is :
y = 0.08511X - 1.56028
Slope = 0.08511 ; intercept = 1.56028
*
GPA for student with height, 56
y = 0.08511(56) - 1.56028
y = 3.20588
y = 3.2
The correlation Coefficient, r vlaue :
The correlation Coefficient, R value for the model which ecakutes the degree of correlation between the dependent and independent variable is 0.6407 (strong positive relationship)
Which of the following explains which inequality symbol belongs in the box? 7 3 8 × 4 5 □ 7 3 4 A. When 7 3 8 is multiplied by a number greater than 1, the product is less than 7 3 8 . The product is also less than 7 3 4 because 7 3 8 < 7 3 4 . B. When 7 3 8 is multiplied by a number greater than 1, the product is greater than 7 3 4 . The product is also greater than 7 3 4 because 7 3 8 > 7 3 4 . C. When 7 3 8 is multiplied by a number less than 1, the product is less than 7 3 8 . The product is also less than 7 3 4 because 7 3 8 < 7 3 4 . D. When 7 3 4 is multiplied by a number less than 1, the product is greater than 7 3 8 . The product is also greater than 7 3 4 because 7 3 8 > 7 3 4 .
Answers
Answer:
b
Step-by-step explanation:
Answer:
B thank you for doing that hard work
putting all that info in
Step-by-step explanation:
The cost of insurance can vary wildly between insurance companies. True or False
Answers
Answer:
The answer will be True
Step-by-step explanation:
Because I said so
NEED HELP I SUCK AT GEOMETRY (OFFERING 100POINTS)!!! best answer get brainlest
Find the measure of angle C
show work and explain!
Answers
As it is a parallelogram opposite sides are same
[tex]\\ \sf\longmapsto <B=<D[/tex]
[tex]\\ \sf\longmapsto <A=<C[/tex]
<A=45[tex]\\ \sf\longmapsto <C=<A=45°[/tex]
Х
32°
X =
degrees.
PLEASE HELP
Answers
The angle of a line is 180 so we can find x by doing
180-58 = 122°
What value of b completes the function f(x)=-x^2+bx+1?
Answers
Answer:
Step-by-step explanation:
It is hard to guess the coordinates of any points, because the graph doesn't go through any intersections of the grid.
Fortunately, I can tell that the axis of symmetry is x=2.
Put the equation into vertex form by completing the square.
axis of symmetry = b/2
b/2 = 2
b = 4
please, someone, help very hard
Answers
Answer:
A. G'(5) = 20
B. G'(5) = -1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
FunctionsFunction NotationCalculus
Derivatives
Derivative Notation
Derivative Rule [Product Rule]: [tex]\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]
Derivative Rule [Quotient Rule]: [tex]\displaystyle \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]
Step-by-step explanation:
Step 1: Define
[Given] F(5) = 4, F'(5) = 4, H(5) = 2, H'(5) = 3
[Given] A. G(z) = F(z) · H(z)
[Given] B. G(w) = F(w) / H(w)
[Find] G'(5)
Step 2: Differentiate
A. G(z) = F(z) · H(z)
[Derivative] Product Rule: G'(z) = F'(z)H(z) + F(z)H'(z)B. G(w) = F(w) / H(w)
[Derivative] Quotient Rule: G'(w) = [F'(w)H(w) - F(w)H'(w)] / H²(w)Step 3: Evaluate
A. G'(5)
Substitute in x [Function]: G'(5) = F'(5)H(5) + F(5)H'(5)Substitute in function values: G'(5) = 4(2) + 4(3)Multiply: G'(5) = 8 + 12Add: G'(5) = 20B. G'(5)
Substitute in x [Function]: G'(5) = [F'(5)H(5) - F(5)H'(5)] / H²(5)Substitute in function values: G'(5) = [4(2) - 4(3)] / 2²Exponents: G'(5) = [4(2) - 4(3)] / 4[Brackets] Multiply: G'(5) = [8 - 12] / 4[Brackets] Subtract: G'(5) = -4 / 4Divide: G'(5) = -1Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Derivatives
Book: College Calculus 10e
Which statement js true about the value of the expression below? (-2^3)-^2
Answers
Answer:
your answer will be Option C. between 0 and 1
Step-by-step explanation:
hope it helps
have a great day/night
Answer:
It is between 0 and 1
Step-by-step explanation:
I did the diagnostic